Door-hanger.



PATENTED FEB. 4, 1908.

P. F. HOLSTERS.

DOOR HANGER.

APPLICATION FILED MAR.22.190'{.

Pfllhesses. dig

PAUL FERDINAND HOLSTERS, OF BRUSSELS, BELGIUM.

DOOR-HANGER.

Specification of Letters Patent.

Patented Feb. 4, 1908.

Application filed March 22. 1907- Serial No. 363.975-

T 0 all whom it may concern:

Be it known that I, PAUL FERDINAND HOLsTERs, a subject of the King ofthe Belians, residing at 6 Rue de Theatre, Brussels, Felgium, haveinvented new and useful Improvements in Door-Hangers, of which thefollowing is a specification.

This invention relates to door hangers, and it. consists in theprovision of a hanger for sliding doors embodying a grooved memberadapted to be secured to the framework of a building, and a deviceattached to the door and engaging the grooved member, said deviceconsisting of a knob having a cylindrical portion provided with aflattened head, and a base portion forming a dovetailed joint with thegrooved member.

The invention consists further in providing means for engaging theflattened portion of the head in order to secure the device permanentlyin position in the door.

In the accompanying drawings, Figure 1 is a view in side elevation of adoor provided with my improved hanger. Fig. 2 is a view in cross sectionof a portion of the door and framework, showing the hanger applied tothe former. Fig. 3 is an elevation of a portion of the grooved member,showing the mannor in which the device on the door engages said member.Fi 4 is a detail view of the groove-engaging device, showing the samefrom its inner side. Fig. 5 is also a detail view, showing the front ofthe groove-engaging device.

Referring to the drawings in detail, a represents a door which may besupported at the top by a han er I) having its bearing on a track I. Inthe drawing I have shown this upper hanger as being of the ordinaryconstruction and secured to one of the upper corners of the door, whilethe hanger embodying my invention is secured to the door at a pointbetween the upper and lower panels. This arrangement of the hangers isdesigned to prevent the door from being forced out of its properposition during the operation of opening or closing.

Secured to the framework of the building, and preferably embedded insaid framework, is a horizontal grooved track II, having a narrowentrance slot at, and this track is engaged by the inner projectingportion of the hanger, which may be mounted on the door about on a linewith the handle 9. It will be noted that the central hanger is adjacentto the inner edge of the door and that the upper hanger is near theopposite edge. This central hanger consists of a main cylindricalportion 2 passing throu h an aperture in the door and provided with ahead 11), the sides of which are flattened or cut away. The head isprovided with an annular groove 8, and the flattened portion of the headextends only to this groove. A plate q is secured to the side of thedoor, and is provided with an aperture, approximately circular 'in form,but having straight portions on opposite sides, forming inwardlyprojecting lugs, as shown in Fig. 5. These lugs engage the annulargroove previously referred to, and when the parts are placed in properrelation to each other and the plate is turned through a uarter of arevolution and secured to the oor, the device is in operative position.

Connected with the cylindrical portion 2 is an elongated base portion1), corresponding in cross section with the grooved member or track II,and engaging the same in such mannor that a substantially dovetailedjoint is formed. A flange 3 bears against a countersunk plate 4, and isflush with the inner surface of the door.

From the foregoing description, the operation of the device will bereadily understood.

What Iclaim as new and desire to secure by Letters Patent, is:

1. In a device of the character described, a grooved member secured tothe frame-Work of the building or other structure, a door, a knob onsaid door engaging said groove, the knob consisting of a cylindricalshank portion having a flattened head and a base portion forming adovetail joint with the grooved member, and a locking device bearingagainst the flattened portion of the head. i

2. In a device of the character described,a grooved member secured tothe framework of a building or other structure, said grooved memberhaving a narrowed entrance slot, a door, and a knob on said doorengaging said groove, the knob consisting of a cylindrical name to thisspecification in the presence of shank portion having a iliatteneid headand a tWo subscribing Witnesses. base ortion formin a c ovetai ed jointWith T the gEOOVGd Inembe i, and a device bearing PAUL FERDINMDHOLSTERS' 5 against the flattened portion of the head for Witnesses: aholding the knob in position. A. GRAETZ,

In testimony whereof I have signed my OH. DIERICKE.

